A solution of ammonia and water contains 1.00×1025 water molecules and 5.50×1024 ammonia molecules. How many total hydrogen atoms are in this solution?

1E25 H2O molecules will have 2x that for number of H atoms.

5.50E24 NH3 molecules will have 3x tghat for number of H atoms.

The total H atoms will be the sum.

thankyou so much! i got 3.65*10^25

I agree.

To find the total number of hydrogen atoms in the solution, we will first calculate the number of hydrogen atoms in water (H2O) and ammonia (NH3) separately, and then add them together.

1. Number of hydrogen atoms in water (H2O):
In one molecule of water (H2O), there are 2 hydrogen (H) atoms.
So, multiply the number of water molecules (1.00×10^25) by 2 to get the total number of hydrogen atoms in water.

Number of hydrogen atoms in water = 1.00×10^25 * 2

2. Number of hydrogen atoms in ammonia (NH3):
In one molecule of ammonia (NH3), there is 1 hydrogen (H) atom.
So, multiply the number of ammonia molecules (5.50×10^24) by 1 to get the total number of hydrogen atoms in ammonia.

Number of hydrogen atoms in ammonia = 5.50×10^24 * 1

3. Finally, add the number of hydrogen atoms in water and ammonia to get the total number of hydrogen atoms in the solution.

Total number of hydrogen atoms = Number of hydrogen atoms in water + Number of hydrogen atoms in ammonia

You can perform these calculations to get the exact numeric value.